[cryptography] US Appeals Court upholds right not to decrypt a drive

James A. Donald jamesd at echeque.com
Fri Feb 24 20:54:04 EST 2012

On 2012-02-25 7:28 AM, Steven Bellovin wrote:
> The first point, not addressed in your note but quite important to the ruling, is that the key has to be something you know, not something you have.  If the keying material is on a smart card, you have to turn that over and you're not protected.  If a PIN plus smart card is needed, you still have to turn over the smart card but not disclose the PIN.

Surely the core of the ruling is that no one except the defendant knows 
for sure whether the key exists, knows whether there is an inner 
truecrypt volume or not.  The cross examination of the forensics witness 
focused on that point.

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